Issue installing head unit

[cbrei1023 10+ year member]

I have a 93 Mazda MX3. When I went to install a new head unit I noticed that the wireing harness was not stock. There was a big clump of electrical tape and then OEM wireing behind it. After I took off the tape I realized that the harness in there could not have been an OEM part. The wires are too far back into the dash for me to be able to hook up new wires properly. I was wondering if I could simply run a wire from the ingnition wire and the 12V power wire straight to the battery and then put a switch on the ingnition wire to be able to turn power on and off. Then just ground normally.

Will this work?

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[djarmy2004 10+ year member]

I would say take the dash apart more and trace wires then add extensions on them maybe 6" worth maybe more depending on how short they are. But your method should work also just take a bit on both its your choice.