Ska Posted September 21, 2004 Report Share Posted September 21, 2004 Hi folks Finally got my A8 back from the dealer and she looks as good as new , will post some pics. after the tints go on. The third party got billed for well over £2.5k for a new bumper and wing not to mention the rest of the cost including £2.5k worth of car hire! I'm trying upgrade the front speakers as the sound stage seems heavily biased towards the rear after fitting the Alpine monitor/TV system, any one know of the spec. of these standerd units (none Bose). Does anyone know how the interior door trim can be removed to gain access to the front speakers? i.e. where are the screws at or is it all clips and can it be removed with out blowing out the airbags etc. Also I thought that some D2 platform A8/S8 had a ski hatch where the rear central arm rest is, but I don't seem to have an opening into the boot on 1997 2.8 sport, any ideas I want to fit a subwoofer and don't want to cut or drill anything! Cheers Link to comment Share on other sites More sharing options...
MiniMan Posted September 21, 2004 Report Share Posted September 21, 2004 Hi as a halfords employee i do car fits for HU's etc. from the experience i have with the speakers if they look like the grill/cover comes off then that may be a way in i know this apply's for french cars e.g Picasso. (just an idea) and the sub can be wired in down the side of the plastic door trim at the base of the door. thats the best way to do those. dont know if thats any help. cheers Link to comment Share on other sites More sharing options...
Sven Posted September 21, 2004 Report Share Posted September 21, 2004 Hi Ska, good to hear it's back! Here on Audipages is an article how to remove the door trim. The Ski hatch is an optional extra, but you may still find a cover there, below the upholstery. But you could just mount a sub to the back of the seat in the boot/trunk, no need for a hole methinks? Or get one of those tubes in the boot/trunk. Link to comment Share on other sites More sharing options...
Ska Posted September 25, 2004 Author Report Share Posted September 25, 2004 Thanks guys, I've been brave and had a look see at the back seat and yes there is cut away blank behind the arm rest, great!! The reason behind this hole is to vent the bass waves into the cabin for better reproduction of sound and to reduce energy absorption by the body panels which aggravates fatigue problems (aluminium generally worse off than steel) and to minimise current draw from the battery. (A bit geeky I know but its part of what I do for a living and I’ve learnt from experience!!) Link to comment Share on other sites More sharing options...
A8_Tony Posted September 25, 2004 Report Share Posted September 25, 2004 Tell you what Ska, it'll be nice to see the pics of your beastie, maybe an ongoing project type post??? Link to comment Share on other sites More sharing options...
Sven Posted September 25, 2004 Report Share Posted September 25, 2004 [ QUOTE ] Thanks guys, I've been brave and had a look see at the back seat and yes there is cut away blank behind the arm rest, great!! The reason behind this hole is to vent the bass waves into the cabin for better reproduction of sound and to reduce energy absorption by the body panels which aggravates fatigue problems (aluminium generally worse off than steel) and to minimise current draw from the battery. (A bit geeky I know but its part of what I do for a living and I’ve learnt from experience!!) [/ QUOTE ] No, that's great. I'm always keen to learn something! BTW, since this is your field, would it be doable to hook up a sub to the Bose system? Reason I ask is because I still have a nice (bridgeable) amp laying about (not that I'm displeased with the Bose). This used to power the rear speakers and a sub in the Porsche. I was just thinking wether it would be possible to put it to good use, and hook it up with the Bose setup. Otherwise I may build it into my bed... Link to comment Share on other sites More sharing options...
Sven Posted September 25, 2004 Report Share Posted September 25, 2004 [ QUOTE ] I'm trying upgrade the front speakers as the sound stage seems heavily biased towards the rear after fitting the Alpine monitor/TV system, anyone know of the spec. of these standerd units (none Bose). [/ QUOTE ] What do you need to know exactly? What's still in there of the OE stuff? Link to comment Share on other sites More sharing options...
Ska Posted September 25, 2004 Author Report Share Posted September 25, 2004 Thanks for wiper tip. In response to your query, anything is possible, but a system/wire diagram of your Bose set up would be ideal. But the following would be very useful: Does the Bose system have RCA feeds to amps and how many standard Bose amps are there in the system. I need a bit more info. about your bridgeable amp. such as: Make/model of your amp. How many channel output. Does it have speaker level input as well as RCA phono lead input terminals? I think I will put some photos of my audio system install with hints and tips although it wasn’t a Bose set up to begin with, it would certainly bring some insight into the subject on this model of car. Once I have the this info I can tell you how to wire your amp safely. Look forward to hearing from you. Link to comment Share on other sites More sharing options...
Sven Posted September 25, 2004 Report Share Posted September 25, 2004 Ah, cheers for that, however I meant what do you need to know about your setup... Here's a general overview: 1 Bass speaker - In bottom of front door trim 2 Treble/mid-range speaker - In top of front door trim 3 Mid-range speaker - Treble/mid-range speaker with BOSE sound system only - In bottom of rear door trim 4 Treble speaker - Not with BOSE sound system - In top of rear door trim 5 Aerial selection control unit - Beneath C-pillar trim at bottom 6 BOSE power amplifier - With BOSE sound system only - At rear left of luggage compartment beneath CD changer 7 CD changer - At rear left of luggage compartment beneath side trim 8 Aerial amplifier - Beneath rear shelf on partition on left of luggage compartment 9 Aerial amplifier - At top left beneath D-pillar trim 10 Aerial amplifier - Beneath rear shelf on partition on right of luggage compartment 11 Active speaker - Bass speaker (with BOSE sound system only) - In rear shelf 12 Rear window aerial - FM1, AM, FM2, FM3, FM4 aerials 13 Aerial amplifier - At top right beneath D-pillar trim 14 Radio - In centre console Link to comment Share on other sites More sharing options...
Sven Posted September 25, 2004 Report Share Posted September 25, 2004 Dunno which HU you (used to) have, but here's a diagram for my Navi+ with Bose. 1 TV tuner at rear left of luggage compartment beneath side trim 2 CD changer (optional) at rear left of luggage compartment beneath side trim 3 Operating electronics control unit, navigation 4 Hands-free loudspeaker in left B-pillar trim (up to MY 01) 5 BOSE power amplifier at rear left of luggage compartment 6 Front bass speaker in bottom of door trim 7 Front treble speaker in top of door trim 8 Rear treble/mid-range speaker in bottom of door trim 9 Rear bass speaker in rear shelf 10 Navigation system aerial (GPS) attached to boot lid 11 Navigation system interface behind dash panel insert 12 Rear window with four integrated FM aerials and one AM aerial 13 Aerial selection control unit at bottom left beneath C-pillar trim 14 Four amplifiers for radio/ TV aerials in rear window Link to comment Share on other sites More sharing options...
Ska Posted September 25, 2004 Author Report Share Posted September 25, 2004 Fabulous stuff! Theses diagrams put all into perspective. The info. that I was after was the power rating on either the standard Audi delta gala head unit or rated power of the front speakers. Because in my car the front door speakers are run direct off the head unit and I believe that introducing the alpine monitor and its power supply may have affected the balance i.e. in favour of the amp powered rear speakers. I am actually by trade and profession an aerospace engineer (I tinker with aircraft designs); this car audio stuff was just on the side. Anyway to wire up your amp you'll need to tap the signal wires between points 3 & 5 and depending on whether it’s a speaker level or RCA phono input to the Bose amp you can split the signal to your amp i.e. if its an RCA low level signal you can split the signal simply with a pair of Phono Y leads (or with active crossovers- more headache and money) , however if your bass amp can only accept RCA input connectors and a low level input signal and the signal being fed to the Bose amp is speaker level then you’ll need to get hold of a small converter to turn the speaker level input to RCA input for your amp. Though I strongly suspect that Navigation/TV unit won’t have an onboard amp, so it’ll probably be a RCA feed to the Bose amp (which will make life a little easier). As for remote turn on for your amp you can tap in to same one connected to the Bose amp (probably white in colour – check- shouldn’t carry more than about 500milli amps). Power and earth are simple and short seeing that the battery is at the back. You said you ran both rear speakers and a sub. off the same amp; if it is a 4 channel amp there are no problems but if it is a 2 channel, depending on the make and model, things may be getting a little hot under the heat sink since the way you had wired it means that the overall resistance the amp experiences has been reduced from 4 ohms to 2ohms. This characteristic to produce more power and run an amp more harder and hotter is normally only a job for a high end manufacturers model such as genesis, Rockford fosgate, soundstream etc. A pic. of my wheels (edited to show pic) Link to comment Share on other sites More sharing options...
Sven Posted September 26, 2004 Report Share Posted September 26, 2004 Nice wheels Ska! Looks mint! Attached ^^^ a part of the current flow diagram for my Navi+ with Bose. Seems there's supposedly a bass speaker in the Amp. I have to take a look now... (well later). Anyway, the amp I have is a 4 channel, and it was bridged to accomodate two (3-way Magnat) speakers and a sub. I'm pretty sure it has RCA jacks, no 'speaker inputs' (i.e. it was hooked up from the HU with RCA, not with speaker leads). I have to dig it up, as I didn't use it for a while. It was a pretty high end amplifier (Technics IIRC), and certainly not cheap, but not the mega bucks audiophile kinda stuff either. The only thing I wasn't crazy about was the Pioneer sub. I figured a sub wasn't that sophisticated anyway, so I economized (a bit) on that. Wrong...! But I'm used to the rapid, firm bass of my Magnat home speakers, so I found the Pioneer a bit 'wobbly'. However, it may have been the less than ideal setup in the Porsche as well. (It did sound good face down on the concrete floor). Anyway, send me a PM with your e-mail addy, and I'll see what I can dig up for the Delta HU. Preferably with your cars model year, engine code and tranny code. (needed for lookup). See sticker here (I'll need 2 and 5, plus the MY) Link to comment Share on other sites More sharing options...
Sven Posted September 26, 2004 Report Share Posted September 26, 2004 The rear of the TV Tuner: 1 Video connection: 11-pin connector for connection of operating electronics control unit, navigation 2 Video input: 4-pin connector (SVHS) 3 Video input; 2-pin connector (yellow cinch socket) for picture signal 4 Video input; 2-pin connector (2 cinch sockets, white and red) for sound signal for left and right channels 5 Power supply: 6-pin connector for power supply and CAN bus connections 6 TV aerial connection: Connection to aerial selection control unit -J515 7 TV aerial connection: Connection to aerial selection control unit -J515 8 TV aerial connection: Connection to aerial selection control unit -J515 9 TV aerial connection: Connection to aerial selection control unit -J515 Link to comment Share on other sites More sharing options...
Sven Posted September 26, 2004 Report Share Posted September 26, 2004 Navi HU: 1 Radio aerial connection: Connection socket for radio aerial 2 Cooling fan 3 IF wire 4 Video connection: 11-pin connector for connection of TV tuner 5 Earth connection 6 Radio connection: 36-pin connection block with 3 multi-pin connectors and 1 fuse 7 GPS aerial connection: Connection socket for navigation system aerial 8 Cooling fan 9 Navigation system connection: 26-pin connector for navigation system sensors Link to comment Share on other sites More sharing options...
Sven Posted September 26, 2004 Report Share Posted September 26, 2004 Last but not least, the Delta: "delta" radio system 1 - Power aerial or radio/telephone rod aerial with aerial amplifier 2 - delta radio 3 - Front bass speaker in bottom of door trim 4 - Front treble/mid-range speaker in top of door trim 5 - Rear mid-range speaker in bottom of door trim 6 - Rear treble speaker in top of door trim 7 - Rear active speaker in rear shelf 8 - CD changer (optional) at rear left of luggage compartment beneath side trim I haven't found the power output to the speakers, but as said, I can probably find the current flow diagrams and pin-outs etc. PM if you want. Link to comment Share on other sites More sharing options...
Botang Posted September 26, 2004 Report Share Posted September 26, 2004 I have just had my stereo gear installied in my A8, I have a JVC Chameleon head unit (one that hides itself when switched off) a Kenwood full din size Graphic equalizer, a 4 channel Sony any and a two channel sony amp. For the time being I have opted agains having a seperate sub although I could always add this at a later stage. Instead I have gone for 5" Boston Acoustics front components, 5" Infinty reference rear components, and two 8" Audiobhan's on the rear shelf. It sounds a bit complicated with different makes, etc this is because some of it is new and some I already had. Link to comment Share on other sites More sharing options...
russellfray Posted September 26, 2004 Report Share Posted September 26, 2004 It's so unfair that on the older tv modules you got an SVHS input, and on the new style it's composite only! What are they playing at?? On the next version you'll probably only have black and white! Link to comment Share on other sites More sharing options...
Botang Posted September 26, 2004 Report Share Posted September 26, 2004 Uploaded a few pics now Amps Graphic Head Unit Link to comment Share on other sites More sharing options...
Sven Posted September 27, 2004 Report Share Posted September 27, 2004 Looks cool... I usually upgraded the stereo install in cars, but with the Navi+ and Bose it seems a bit pointless. The extra amp & sub may be nice tho, if poss. Damn', still forgot to look at that Bose amp, if there's a sub in there as the diagram says... Link to comment Share on other sites More sharing options...
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