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'93 Impreza WRX bad radio reception

Posted: Wed Dec 26, 2012 1:34 pm
by Tomi
Hi everyone.

I have recently purchased a 1993 Impreza WRX and I am having problems with radio reception. In the suburb I live in, all I can hear on FM radio is static. In some other areas the reception gets a little better but there is always some static in there. Does anyone know how to fix this problem? Would a new head unit work? Currently I have an Alpine CDA-9856. Or is it an antenna problem?

Posted: Wed Dec 26, 2012 3:03 pm
by thunder039
Could be a couple of things I would first check the aerial connection. I know in the foresters they have a booster behind the radio. Check that if you end up replacing the head unit.

Posted: Wed Dec 26, 2012 3:20 pm
by niterida
Ihave pulled a few stereos out of Subarus and they all seem to have the aerial connector a fair way from the stereo. The connection may have pulled out if it was stretched tight to make it reach. The solution for this is simple - the cable from the aerial is usually bunched up unbder the passenger footwell carpet. Just pull it out and reconnect :)

Could also be a dicky aerial.

Posted: Thu Dec 27, 2012 12:31 am
by Tomi
Okay I pulled out the current head unit and found out that the "Power Antenna" wire isn't connected to the car. Would this be causing the problem? Can I connected any power cable to this or is there a specific cable in the car somewhere?

Posted: Thu Dec 27, 2012 12:50 am
by niterida
That has to be connected to the wire coming from the antenna. Should be a blue wire with a white stripe (from memory) in the cars wiring behind the stereo. It should be in the same bundle of wires that plug into the head unit itself somewhere.

Posted: Thu Dec 27, 2012 1:08 am
by niterida
I just checked my Factory RS manual and the power antenna wire is BG ( Black with Green stripe). It should be bundled with the Yellow/red stripe, Blue/red strip and black wires.

Posted: Thu Dec 27, 2012 8:38 am
by RSR 555
Hi and Welcome to AUSubaru Tomi,

Sounds like your ariel/antenna isn't pulled out enough. Also check that the cable is not broken anywhere under the dash or up the pillar.

The "Power Antenna" wire is not required on the WRX as they don't have a power antenna. This is for the stereo make the antenna go up when the radio is switched on.

Posted: Thu Dec 27, 2012 10:53 pm
by Tomi
Okay so I installed a new head unit and the reception is still bad. It seems like the antenna cable runs under the passenger foot well and down the left hand side of the car. It would be too much of a hassle to trace this cable to find any problems. Can an antenna be easily replaced?

Posted: Fri Dec 28, 2012 12:52 am
by RSR 555
93 Impreza should have an antenna above the RHF A pillar, just at the top of the front windscreen near the driver's side. Not sure why your cable would be running down the LH side of the car??

They can be replaced but I would recommend you attach a draw wire to the end before pulling the old one out, this will allow you to pull the new one back through the pillar.

Posted: Fri Dec 28, 2012 6:28 pm
by Tomi
Yeah the car has the antenna just above the driver side door. It is very hard to trace it back to the head unit though, as it travels into the dash.

Posted: Sat Dec 29, 2012 12:45 am
by RSR 555
Yes, it's hard to follow but can be done.

Is the antenna pulled out from the roof? Should be about 80cm when extended out.

Posted: Sat Dec 29, 2012 1:26 pm
by Tomi
Yes it can be extended, but makes little difference to the reception.

Posted: Sun Dec 30, 2012 12:06 am
by RSR 555
Tomi wrote:Yes it can be extended, but makes little difference to the reception.
Then it definitely sounds like something isn't plugged in.

Reading your other posts, I'd say someone has had this car apart and who knows what's been done.. Might pay to have a auto sparkie check this and other issues. Dave (subarino) comes to mind ;)