rx7b13

im confused when i got my new pioneer radio installed in my 88 FC they guy at best buy said my car was messed up. he said when he turned on my radio my antenna went down and when he turned my radio off the antenna went up. i think some wires are crossed or something but i really dont care cause now i can listen to the radio while i going theough the car wash. and also i was thinking about taking out the antenna motor anyways because since it isnt working right and all i listen to are cd's whats the point of having the motor.

jono20

mazda is the only manufacturer I know of who uses a NEGATIVE signal to put their antenna up. Every other manufacturer uses a positive signal to tell it to go up, thats why it is reversed. You need to send a - signal, not +!!! (get a relay)

WAYNE88N/A

There are a couple of diodes in the antenna motor, that if shorted, could allow the 20A audio fused circuit to power the motor, but I don't think that's your problem...

There should be a blue/yellow wire from the radio unit going to the antenna, if you want to check that out...Maybe the guy just crossed some wires, or the harness adapter he used (if any) is wrong...

jono20

wronngg polarity im tellin ya :P

WAYNE88N/A

There are no negative signals in a 12vdc system. In any case, I think I know what you're talking about, you're saying that the radio provides a ground for the antenna motor, instead of sending voltage TO it, right?

jono20

The stock radio sent a negative signal.

I forget where but I read a BIG article on this awhile back. The stock deck sent a neg signal but all modern decks send a positive one. You need to install a relay so that the + signal sends a - to the antenna.

maybe its a ground and not a negative. im not 100% sure on it, but I know thats the reason its going backwards.

rx7b13

but what about removing the motor all i listen to are cd's

WAYNE88N/A

Sure, why not? I listen to CD's exclusively, too

jono20

yeh I snapped off my antenna in a car wash too. jsut replaced it with a small little flexible rubber one. No big deal radio is silly. Ive got one mp3 cd with 200 songs on it, havnt taken it out since I bought my car :P

WAYNE88N/A

And Jono- yeah, that's what you're trying to say, you're just saying it differently.

Installing a relay to provide a simple ground via its contacts (using the decks power signal for the relay coil) would do it...

WonkoTheSane

iTrader: (2)

I didn't even bother to put an antenna back in my car when I did the body work. Actually, the other day I was trying to show someone where the antenna was on the 7, but I couldn't remember.. Apparently I did a pretty good job with that section of body, too, as I couldn't tell my from my work

Screw the radio, it sucks anymore

On a completely unrelated note, rx7b13, I love your sig picture

jono20

haha yeah thats been my pic on msn for awhile now too. awesome.

rx7b13

with my motor i dont have to worry about power to my cd/mp3 player i can just pull that and my antenna out right and the head unit will still work, oh yea and hey man pictures tell the truth

Tournapart

iTrader: (4)

NO RADIO! BAD RADIO! radio's eat your brain!

nyc_scorpio

iTrader: (1)

http://www.installdr.com/Harnesses/Mazda-Wiring.pdf

nuff said, it works on a neg polarity. you need a relay to make your antena go up/down the correct way...

RotaryEvolution

iTrader: (30)

yup, you need a relay to control the other relay...


stupid? yes i know the system is.

Steel

Just as stupid as their blower motor system. Hence why i haven't gotten around to fixing it yet.





















who the hell uses a freaking transistor for a blower motor. I mean seriously..

NZConvertible

If you want the antenna to work properly, do this:

Icemark

This is covered in the FAQ for FC sticky thread at the top of this section!!!

Please read the FAQ for FC sticky thread before posting. It has many answers to commonly asked questions such as the one that started this thread.

Thread closed