Audio Systems: Kenwood CD Player - 04 Jeep GC, kenwood cd player, stock speakers


Question
QUESTION: Hey,
I just installed my new Kenwood CD player yesterday, all day it worked fine turning the vol. up and down changing tracks, tuning...etc. This morning however I was on my way to work and I had it playing at 30. All of a sudden the volume seemed to die down though it was still on 30 and the song sounded distorted. Now I checked the grounds and the connections, I used wire caps to fasten them together. I noticed that the Antenna has no ground on it, though the antenna adapter seems to have a little metal lip with a little eye lit on it. Is there a possibility that this needs to be grounded? Because like I said it worked completely fine yesterday. What else would cause this?

ANSWER: Seems that you lost power to the amp or the amp inside the cd player. That could be caused by a lost ground OR a lost 12v line. And, yes the antenna must be properly wired. If there is a ground it must be grounded.  If the amp that is driving your loudspeakers does not have the proper ground it will have no power output to drive the speakers!

If you have a VOM you can check the unit for 12v power.  If it has lost power that may be the problem.

If you do not have a VOM, take it to a shop where they can look at it. They should be able to check it out quickly.

Good Luck,
C


---------- FOLLOW-UP ----------

QUESTION: Thanks for the Quick reply. Also it seems that that problem is gone now. I re-tightened all the wire nuts and it does not seem to be happening anymore. Now however the Headunit is going into protection and overheating, I was listening to metallica and i had it up to about 32 of 35 (i have stock speakers and no subs) and had the settings on the headunit to the OEM specs..is it possable that this is a bad ground? or a more serious problem?

Answer
Good. You probably had some bad or high resistance connections.

Protection shut down and overheating is nearly always associated with either a shorted out speaker voice coil OR a short on the speaker line.  In your case, it could even be a short of one side of the speaker to chassis ground; particularly if the the wiring is scraping against some metal part of the chassis and the insulation of the wire is bruised sufficient to cause a short.  So, you must now check out each channel wiring.  Good approach is to disconnect all speakers from the back of the amp and connect them one at a time until you find the guilty party!

Good Luck,
C