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MG MGA - Fitting Radio
|Hi I wish to fit a modern radio to my MGA. I want to hide under passenger dash. The problem is that all modern audio's seem to be negative earth. Is it still possible to fit these to a positive earth car ?|
|D J Joy|
|Yes, but not a good idea as any bridge between the isolated radio and the car will be a short circuit.|
The better idea is to change the polarity of the car, which is really easy to do.
But if you want a period radio that is dual polarity and modified to accept an external input (iPhone etc) I have one for sale.
Polarity change is easy to do and the instructions are
|DJ, as an alternative, there is technology out there where you can use your smartphone or MP3 player, or leverage an existing radio with the use of a hidden Bluetooth device (it has dual polarity). I attached a link to one of the providers:|
Vintage positive or dual ground radios are out there, and they do come up periodically on auctions sites. I actually have a Lucas dual polarity 8-track tape player in my A.
I have been through this route, originally thinking of fitting a + earth radio. Then found the programmes may be limited so have gone now to - earth with 12v battery, alternator and my cd radio from my mgtf. All working good. I have also fitted an adaptor to the battery terminals which allows me to recharge/connect my phone or battery charger. You may wish to look into this option, always reversible.
This thread was discussed on 04/10/2016
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