corvey

I was listening to the the radio while working on the 4runner and it sounded fine until I thought I'm gonna listen to a CD because the factory stereo has a CD player builtin. Put the CD in, it played, but it sounds like it's 40x less the audio power then the radio has. I can barely hear it, it's way too loud to turn the radio full blast and way too quiet to listen to the CD player function with the volume all the way up. Anyone else experience this problem with the factory stereo in a second gen 4runner?

Ringmaster

Amplifier is most likely toast.

Djlarroc

That sounds weird. I would think if it's amp related, neither would get you any volume. I'd say try cleaning the laser lens 1st and if that doesn't help, I'd say the lens is gone.

JackKnife

A CD is digital. A dirty lens won't cause a decrease in volume.

Greg_Canada

In a pioneer deck you can adjust the CD and AM to be louder or quieter than FM... stock deck? time to look for a new one...

stormin94

That's weird. Maybe it's the CD. If it's a burnt CD, maybe you set the record volume too low, or something if you can adjust that with your burner.

corvey

No, it is a real CD. The factory stereo is good enough for now IF the damn CD player works... Still nobody has heard (no pun intended) of this problem?

Astralplane

Each factory rear speaker has it own amp.
This problem usually happens when upgrading the HU and not connecting the proper antenna/amp trigger lead from the new HU.
Has anything been changed from factory?
i.e. speakers, stereo or antenna.

Search "Rear Speakers"

n4ynu1010

Sounds like the CD section pre-amp has gone bye-bye

corvey

Hmmm.. The CD would sound to me like a preamp if it didn't have a amp feeding, yes, that would sound correct. It's like the amp is dead in the CD player but not the radio as the amp in the radio still works fine. It's odd why a CD player would have a seperate amp from the radio.

No, it's all factory as far as I can tell. I will have to tear it apart on the inside later to find out for sure.

Four Runner

Can you be a bit more specific, because when i searched this a while ago, even after looking through FAQ's and the search results, I couldn't find the info. I finally just pulled my sub box out. Where are the amps located? Within the rear enclosures, and which way's best to wire the sub/amp output wire?

Also, what's the cure for getting enough power, even while connecting the amp with a 1ga through a fuse to the battery, without having all your electrical drop voltage? (IE: Fans, lights, etc.)

*And yes, i even looked in the electrical forums posts.

corvey

The cure for that would be a big beefy alternator like 200 amp or better

Four Runner

Yeah, I know about the MR2 or Chevy Alt swap, but there is enough there already, I believe actualy swapping to better battery's the first step though, now, as far as bypassing the factory amp set-up...

corvey

Then you need a big capacitor for the amplifier.

n4ynu1010

Yeah Flux Capacitor

corvey

ROFL!!!!

Seriously though, in this thread, he really does need a capacitor!!!

n4ynu1010

See you post a Donkey Dong and then do the same thing I did on a Capacitor hehe
I understand the Cap. , I have a fairly vast Audio Background as well as Electronics , just funnin