I have a small amp that I got for a great deal. It really doesn't output much, and I just wanted basic decent sound in my car for the long drives.
FM transmitters don't work very well otherwise that would have been good enough for now.
I'm going to go get wire anyways to install the amp/speakers/headunit.
Should I get some extra wire to do this upgrade?
I mean, it's worth it just for the strong ground and improved electronics even if I don't have an amp at all right?
If it costs < $10 in wire for me I'm definitely willing to do it if anyone thinks that it will be something that can come in handy later to prevent electrical issues.
It is never a bad idea to do the big 3 upgrade. I have stock everything when it comes to audio and did it to mine, though I did tie my engine battery to an auxiliary battery, my needs are pretty modest. I don't know what it will cost you, but I doubt it will be less than 10 bucks....personally you should save up a little and do it right once, rather than use cheap thin wire.
It's more of an investment, but now that I have a wire cutting tool (Harbor Freight 8USD
), a wire crimper (TEMco Hammer Lug Crimper Amazon 20USD
) I can make any length wire needed, as thick as I want. My big 3 wires are all thick, cause all I had to do was buy the wire and make them myself.