gotcivicback

Hi Guys,
After nearly 10 years I got back the 2004 Civic EX Sedan that my kids used during HS and college. I am slowly going to fix it up and now have just installed a Kenwood KDC BT555U HU and Polk Audio DB651s speakers in front and a new wiring harness. The system works great until I open or close either door and then the HU goes into protect mode. I removed each speaker one at a time and no matter what speaker is in when I open or close the door the HU goes into protect mode. I took both speakers out and hooked up the old stock speaker to each side and no problems opening or closing the doors. Could I have screwed up the harness, I soldered and insulated with the shrink tubes or something else? btw, I used the diy threads on this site and they were great help.

GolNat

iTrader: (7)

Welcome.

I would say that its a problem with the speakers since the hu is ok with the stock ones in. Does it mention anything in the manual for the hu about the protect mode?

TiggerDX

iTrader: (1)

If it only does it with the new speakers, then you know the issue isn't with the harness.
Try with one new and one old speaker, then reverse and see if the problem persists.
How are you hooking up the new speakers? Do you have a harness adapter for the polks? Did you cut the wires and put in new spade clips? That is the area I would focus my attention on.

drhawkinz

It's doubtful, how did you mount the speakers in door? Sounds to me like the speaker is grounding out so the + terminal is probably touching the door somewhere. When you open or shut the door it cause the speaker to move and ground out. That would be where I would look.

Or either you somehow managed to wire the dome light to the radio so it zaps the radio with 12V when you open the door.

gotcivicback

Thanks everyone, I did not touch any of the existing wiring. The new speakers are mounted on new spacers and I used the existing wire connection=harness for the new speakers. These are shallow speakers so they are not touching anything. The HU manual says the protect mode will happen when the terminals of the speaker wire are not insulated properly?

drhawkinz

Only thing I can think to do is wire the speakers directly to the radio and see if it still goes into protect mode. If you have a multi meter you can measure the resistance on the speakers, should be 4 Ohms. If they both read 4 Ohms then the speakers are fine.

If it doesn't go into protect mode wired this way then you may have a short in your speaker wire somewhere and may need to run a new wire to the speakers.

I would check your shrink wrapping behind the deck and make sure you didn't accidentally melt the coating off one of the wires before having to rip it all apart.

TiggerDX

iTrader: (1)

It sounds like one of three things.
1) The speaker adapter harnesses are bad
2) The mounting tabs on the speakers are bad
3) Somehow the speakers being on spacers are allowing the terminals to touch the door or or something in the door is hitting/shorting the terminals.

Try making your own connections with spade clips/blades and short wires and see if that helps.



I use one of these and cut off one blade. Fits better in some of the small openings.

gotcivicback

The speaker terminals were to close to the inside door frame. I adjusted the spacer and SUCCESS

Until my next problem....Thanks everyone...

drhawkinz

No worries, let us know when you get there.