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7 Posts
Hi guys,
I’ve recently purchased a bluetooth amp (ZK-502C). I’ve installed it into a vintage Falcon with radio-delete using the choke cable location and a modified headlight switch chassis.
It’s completely invisible and it works brilliantly! Use the original choke knob as volume control and it’s great, see attached pics 1-2. Had to drill & tap into the potentiometer shaft and screw the knob shaft into it through the bezel.

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31000×750 183 KB
I also have 2 other vintage cars, both with original radios (non-working). Have tested the volume potentiometers in both and they seem to work fine, see attached pics 3 & 4. Both old radios are case-ground units and the white wire from potentiometer is volume control.

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I want to keep these looking absolutely original, but add the ZK-502C to both in hidden fashion.
Rather than gut the radios to fit the amp, I’d like to just use the existing volume control pot to control the BT amp.
Can you offer any advice on the simplest way to do this?
Think the Blue-Red wire into radio is power, the black is earth and the white is the “wiper” for the volume control. (see pic 5).

61000×723 177 KB
I think this gives me the 3 wires for potentiometer??
Can I use these to bypass the potentiometer in the ZK-502C? or is there another equivalent bluetooth amp that will give similar output in similar sized package but allow me to wire in the volume-pot as described?
Does this make sense?
Is it a workable solution?
Do you have a better suggestion?
I would really appreciate your input on this, as I really love the result with the ZK-502c already in my radio-delete car.
Cheers
Warren
I’ve recently purchased a bluetooth amp (ZK-502C). I’ve installed it into a vintage Falcon with radio-delete using the choke cable location and a modified headlight switch chassis.
It’s completely invisible and it works brilliantly! Use the original choke knob as volume control and it’s great, see attached pics 1-2. Had to drill & tap into the potentiometer shaft and screw the knob shaft into it through the bezel.

21000×750 236 KB

31000×750 183 KB
I also have 2 other vintage cars, both with original radios (non-working). Have tested the volume potentiometers in both and they seem to work fine, see attached pics 3 & 4. Both old radios are case-ground units and the white wire from potentiometer is volume control.

41000×749 348 KB

51000×750 331 KB
I want to keep these looking absolutely original, but add the ZK-502C to both in hidden fashion.
Rather than gut the radios to fit the amp, I’d like to just use the existing volume control pot to control the BT amp.
Can you offer any advice on the simplest way to do this?
Think the Blue-Red wire into radio is power, the black is earth and the white is the “wiper” for the volume control. (see pic 5).

61000×723 177 KB
I think this gives me the 3 wires for potentiometer??
Can I use these to bypass the potentiometer in the ZK-502C? or is there another equivalent bluetooth amp that will give similar output in similar sized package but allow me to wire in the volume-pot as described?
Does this make sense?
Is it a workable solution?
Do you have a better suggestion?
I would really appreciate your input on this, as I really love the result with the ZK-502c already in my radio-delete car.
Cheers
Warren