Need help with install of Pioneer DEHP-7400mp with Scosche Harness into 1st gen

Reply Subscribe

Thread Tools

Search this Thread

02-14-03, 07:36 AM

Maguire

Born 2 Brap

Thread Starter

iTrader: (1)

Join Date: Jun 2002

Location: Louisville, Ky

Posts: 1,068

Likes: 0

Received 3 Likes on 2 Posts

Need help with install of Pioneer DEHP-7400mp with Scosche Harness into 1st gen

This is a link to the thread in the 1st gen section. If you have any suggestions PLEASE post them! Thank you!

https://www.rx7club.com/forum/showth...hreadid=158096

Reply Like

02-14-03, 10:02 AM

RX-7-Tobi

Full Member

Join Date: Nov 2002

Location: Germany

Posts: 109

Likes: 0

Received 2 Likes on 2 Posts

Whaz your problem pal?

Just the antenna turn on thing or doesn't the Pioneer work at all?

The upto89-Mazda power antennas are ground switched (like hands free units). So you need a relay that is turned on by the +12V of the Pioneer antenna signal and thats switches the Mazda antenna wiring to ground.
Maybe that's the reason why your Pioneer doesn't work at all. Could have been a short circuit when connecting the antenna remote to the Mazda wiring. I do hope only a fuse inside the Pioneer went up.

See here for the pre89 wiring.
Use an online translator if you do not understand the pinout.

http://www.tobias-albert.de/ta_autoh...azda_1983.html

rgds
Tobias