ICQ>

The original stereo in my '79 244 quit working recently.

I took it out to see if I can do anything about it, but it

only made things more confusing for me. Could someone answer

a few questions about it?

1) The stereo has 4 wires (or 4 bundles) - the coax is the

radio antenna, I presume, and the two black/yellow pairs are

for each speaker. The lone blue wire with a fuse is obviously

the power. So where on earth is the ground? (no pun intended)

The mounting hardware is plastic, so that can't be it.

2) If the stereo (and not the wiring on the car) turns out to

be faulty, can I just replace the head unit with a modern unit,

or will I need to also replace the speakers? A guy at a local

electronics shop said that if the negative terminals of the

speakers are grounded, it won't work with modern stereos - are they?

3) Are mounting hardware available for installing a standard

sized (1-DIN) stereo?

4) This is just out of curiosity, but the hole left behind after

I took out the stereo looks very familiar. I drove a '91 240

for a while once - did later 240's have this compartment, even

though the stereo was mounted at the top of the instrument panel?

Why two stereo compartments?

I'd appreciate any advice.