What is that second antenna cable in the back of my stereo?

masstapro · Post by **masstapro** » 02 May 2007, 20:37

98 S70

Replacing the stereo with an Alpine.

But can't figure out what the second and smaller looking antenna cable is coming out of the factory stereo.

Anyone know?

Is is a dimmer or speedometer cable?

Should I be hooking that up to the new stereo?

Thanks everyone!
~Shawn

zenmervolt · Post by **zenmervolt** » 02 May 2007, 22:57

The S70 has two antennae. There is the standard one in the rear fender and another that is etched into the rear window. The lead from the antenna in the rear window is the smaller of the two antenna leads that you're looking at.

Which stereo are you replacing? The SC-900 and SC-901 units are Alpine stereos inside and even use an external 4x50 amplifier. Just an FYI.

masstapro · Post by **masstapro** » 02 May 2007, 23:44

The stereo I'm replacing is SC-813. It also has no cd player.

New stereo is Alpine CDE_9873, with MP3, CD, and I-pod cable play back.

Can I splice both antennae into one so new stereo can utilize them in conjunction?

Rear panel antennae up and down problems. Want one that is more durable or should I just oil it? What kind of oi? maybe silicon?

~Shawn

zenmervolt · Post by **zenmervolt** » 03 May 2007, 09:06

I would not suggest splicing coaxial cable unless you've done it before and know what you're doing. Coaxial cable has both an inner and outer conductor, separated by internal insulation and it's virtually impossible to splice without special tools.

The antenna in the rear fender is the best choice (it's also, conveniently, the standard-size lead cable) since the antenna in the rear glass tends to be more directional.

For the extension/retraction problems, I would suggest a simple light oiling and cleaning. Use something like "3-in-1" oil, put it on a rag, and rub the antenna down with it after cleaning it thoroughly. Do not use grease, grease will cause dirt to stick to the antenna. I typically do this about every other month. It's a 10 minute job at most. If it's sticking because it's bent, you can get a replacement mast without having to replace the entire assembly and it shouldn't be too expensive.