Anyone hook up an amp/speakers/sub to an S4 with .........

phil@detailersdomain · 08-16-2001, 08:55 AM

the factory headunit....

any problems with that....

What are the factory speaker hole sizes?
I've got 5 1/4 inch MB's looking to put them into the car with rockford amps

2 10 inch jL subs as well....wondering if this is a simple job or not...

Thanks,
Phil

Just Dave (my car is ugly) · 08-16-2001, 09:00 AM

think the doors are 5.25 and the rear deck is 6.5

P. Bauer · 08-16-2001, 09:34 AM

mecca · 08-16-2001, 10:01 AM

You'll most likely need the MB Quart adapters to fit 5.25" in the front Part #: QMAUDIFRONT. Your local MB Quart dealer can order them if they dont have them.

KWS4 · 08-16-2001, 10:23 AM

Is it Bose Audio or Standard? if it's Bose there is a way to add a sub and amp but you can't replace the other speakers, a friend did it, big mess, put it back to stock. If you have the non-bose, then the converters mentioned should do the trick!

Stoney · 08-16-2001, 10:31 AM

In my opinion, using the internal amps and then a line level converter would cause unacceptable compromise to the sound, especially given that alternatives exist.

At least for the Symphony unit, here is some info from an occasional member, Britney:

"The Symphony is the same regardless of whether it is BOSE or
not. This is just a coding issue done via a VAG. It basically
adds the BOSE name to the Symphony on start up, changes the
equalization curves, and disables the internal amp for the front
speakers.
"

Then, you can add all the amps and speakers you want.

Precision Car Stereo in Mountain View, CA, have a modification that replaces the final output stage with a better sounding, higher gain one. They do this for many customers (with or without Bose) referred by Carlsen Audi in E. Palo Alto. But, they weren't familiar with the ability to reprogram BOSE with the VAG tool. Reprogramming might make this mod unnecessary, although the mod may have better sonics anyway.

When I decide to spend the money and replace the speakers, woofer, and amps, I'll be posting in the Audio forum with announcements in A6 and here in S4.

bitrbo_in_mass · 08-16-2001, 11:40 AM

What type of sub / amp would you recommend for a S4 sedan w/ the Bose package? And is this prewired or kind of a pain

08-16-2001, 08:55 AM	#1
phil@detailersdomain AudiWorld Super User Account #: 876 Join Date: Mar 2000 Location: Northern NJ Posts: 4,245	Anyone hook up an amp/speakers/sub to an S4 with ......... the factory headunit.... any problems with that.... What are the factory speaker hole sizes? I've got 5 1/4 inch MB's looking to put them into the car with rockford amps 2 10 inch jL subs as well....wondering if this is a simple job or not... Thanks, Phil __________________ Phil Yiu Detailer's Domain Tel: 201-233-0003 e-mail: phil@detailersdomain.com website: detailersdomain.com Please use AW at checkout for 10% off What's going on at Detailer's Domain

08-16-2001, 09:00 AM	#2
Just Dave (my car is ugly) New Member Account #: 21507 Join Date: Jun 2001 Posts: 163	It's a pretty straighforward install... think the doors are 5.25 and the rear deck is 6.5

08-16-2001, 09:34 AM	#3
P. Bauer Elder Member Account #: 14497 Join Date: Jan 2001 Posts: 11,300	Just need a line out converter for the RCA connection to the amp. __________________

08-16-2001, 10:01 AM	#4
mecca New Member Account #: 13092 Join Date: Dec 2000 Posts: 298	The door woofers are 4" and the tweeters are 1" w/ housing... You'll most likely need the MB Quart adapters to fit 5.25" in the front Part #: QMAUDIFRONT. Your local MB Quart dealer can order them if they dont have them.

08-16-2001, 10:23 AM	#5
KWS4 New Member Account #: 23196 Join Date: Jul 2001 Posts: 46	Re: Anyone hook up an amp/speakers/sub to an S4 with ......... Is it Bose Audio or Standard? if it's Bose there is a way to add a sub and amp but you can't replace the other speakers, a friend did it, big mess, put it back to stock. If you have the non-bose, then the converters mentioned should do the trick!

08-16-2001, 10:31 AM	#6
Stoney AudiWorld Super User Account #: 230 Join Date: Mar 2000 Posts: 5,270	I think you CAN modify Bose; have to reprogram with VAG tool.... In my opinion, using the internal amps and then a line level converter would cause unacceptable compromise to the sound, especially given that alternatives exist. At least for the Symphony unit, here is some info from an occasional member, Britney: "The Symphony is the same regardless of whether it is BOSE or not. This is just a coding issue done via a VAG. It basically adds the BOSE name to the Symphony on start up, changes the equalization curves, and disables the internal amp for the front speakers. " Then, you can add all the amps and speakers you want. Precision Car Stereo in Mountain View, CA, have a modification that replaces the final output stage with a better sounding, higher gain one. They do this for many customers (with or without Bose) referred by Carlsen Audi in E. Palo Alto. But, they weren't familiar with the ability to reprogram BOSE with the VAG tool. Reprogramming might make this mod unnecessary, although the mod may have better sonics anyway. When I decide to spend the money and replace the speakers, woofer, and amps, I'll be posting in the Audio forum with announcements in A6 and here in S4. __________________ A6 (C5 platform) FAQ Stoney's Picture Library Email: jds@sonolithics.RemoveThisPart.com 2001 A6 4.2L, Sport, Premium, Nemo Blue, Melange Interior

08-16-2001, 11:40 AM	#7
bitrbo_in_mass Junior Member Account #: 23877 Join Date: Aug 2001 Posts: 743	Re: Anyone hook up an amp/speakers/sub to an S4 with ......... What type of sub / amp would you recommend for a S4 sedan w/ the Bose package? And is this prewired or kind of a pain __________________

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