It sounds like an amplifier (for your Pioneer cd player) and wiring issue (for your retractable antenna). An eliminiation processes need to be applied here.

First, replace the head unit with the factory one (if it is still available). Otherwise, you need to borrow different head unit. If this fix this issue, then you know that it's the amplifier in the head unit.

If the issue persists despite the head unit replacement, it's time to check the loose wiring from the head unit to the speakers. Also check if the wiring on the actual speakers are properly secured.

The above process should also work for your antenna issue. Perhaps, the head unit itself is having an issue (for both antenna and amplifier).
Source(s):
More troubleshooting websites for car audio:
http://support.radioshack.com/support_tutorials/audio_video/audfaq-2A.htm

http://support.radioshack.com/support_tutorials/audio_video/audfaq-2AB.htm#...

http://support.radioshack.com/support_tutorials/audio_video/audfaq-2AG.htm#...


Permalink | Report