illumination fuse blowing

[mazdamxstyle]

I posted this on Rx7club.com but no one is helping hopefully you guys who are electronically knowledgable can help. Its on a 89 rx7 GXL. But I believe it's a general electrical problem.

i narrowed the fuse problem down this morning. I put in a new fuse and turned on the lights without the deck hooked up, then connected the lighter and everything instantly went out. So it definitely has something to do with the lighter. But now I turn on the lights without the lighter and it keeps blowing. So it just must be power going through the lighter somehow and I connected the circuit which made it blow. Any ideas suggestions? So what I originally thought was a deck problem is not. And I know it is because they put in a new deck, it must have moved an open wire or something or grounded something wrong. This is really frustrating I can't even drive at night with music playing and if they keep blowing whenever I turn on my headlights I can't drive at night period. Please help thanks!

Only installed the deck. The deck is grounded to the lighter tapped into the actually ground wire from the lighter. But done proffessionally. I think the hot wire is crossing with the ground wire at some point. Although of course the place that installed it thinks its just coincedence it happened at the same time.

one more thing. It's grounded directly into the ground wire on the lighter. but it's still blowing even when the decks not connected... Im confused. So it's not a deck problem and it's possible that two wires are crossing but they did a good job capping off open wires. One more piece of info is that the deck illumination wire is going to the hazard fuse, and it also has an inline fuse but none of those are blowing. So I really dont think its fully related to the deck I think its related to the deck being installed into the lighter. I really need some help.

I have a 89 RX7 GXL


One more thing, would bare speaker wire being crossed cause illum fuse to blow??? because I took out my door speaks and its bare wire at the very tip. Might be the problem. Im not to bright in this area though.


Thanks so much for the help in advance

[BumpNGlow]

the speaker wires wouldn't be the problem, although it can be a different problem eventually so I recommend fixing it.

I would look closely at the wire runs from the cig lighter to the power wire. make sure nothing is loose or bare. the blown fuse is most likely not a bad ground, but a grounded power wire.

If you diagnosed the problem correctly it sounds like the cig lighter is definately the problem. Try disconnecting it completely and playing around like that. The wiring shouldn't be too complicated.

Good luck

[mazdamxstyle]

thanks I will try and disconnect the cig lighter I just have to track it, which wont be easy.