1999 Audi A4 (w/Bose)--Delphi install

Printed From: the12volt.com
Forum Name: Car Audio
Forum Discription: Car Stereos, Amplifiers, Crossovers, Processors, Speakers, Subwoofers, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=13208
Printed Date: July 20, 2025 at 3:47 PM

Topic: 1999 Audi A4 (w/Bose)--Delphi install

Posted By: esmith69
Subject: 1999 Audi A4 (w/Bose)--Delphi install
Date Posted: May 05, 2003 at 8:28 PM

We did one of these recently (fm modulated Sky-Fi) and the car no longer has AM reception, although the FM reception seems to be fine. I tried using the amplified antenna adapter and that didn't really help much--it eliminated a TINY bit of static but you still can't hear any of the am stations. I didn't really have a lof ot time to fiddle with everything but am really confused as to why the AM reception is so crappy.

A few months ago I had a similar problem with an aftermarket deck install in a 99 new beetle. We initially did not use that amplified antenna adapter and the customer got poor fm reception and NO am reception, but once we used the correct adapter all receptions problems disappeared. So that's why I was kind of hoping it would be that simple for this Audi, too.

If I understand it correctly, the only way to get the factory am booster to turn on (if one even exists in this Audi) is to have the amplified antenna adapter plugged directly into the factory antenna cable, rather than being plugged in to an modulator first or anything like that. And of course the blue wire needs to get 12 volts. But I am pretty sure this is how I had it connected when I was trying things out a few hours ago.

Anyone know what might be the problem? Thanks in advance.

-------------
Ethan
-----
"Patience, persistence, and perspiration make an unbeatable combination for success"
Donate to the12volt.com

Replies:

Posted By: esmith69
Date Posted: May 06, 2003 at 8:24 PM

No takers? posted_image

lol okie well maybe there's someone out there who can just tell me what they know about amplified antenna adapters?

-------------
Ethan
-----
"Patience, persistence, and perspiration make an unbeatable combination for success"
Donate to the12volt.com

Posted By: ViperATC5
Date Posted: May 06, 2003 at 8:45 PM

from what i have heard, in order for the radio to get AM reception, the delphi unit must be turned off, turn the radio off, and then turn the radio back on with the delphi unit still off and it will get the reception - try this out and let me know if it really works

Posted By: esmith69
Date Posted: May 07, 2003 at 8:18 AM

Thanks! I will try this ASAP and let everyone know if it works.

-------------
Ethan
-----
"Patience, persistence, and perspiration make an unbeatable combination for success"
Donate to the12volt.com