Back in the game. This time with a 4.4

[GSXRliterbikz]

It's a 1 owner 92k mile 4.4 2001 sport. Bought it from a small dealer. They put brand new toyo proxis tires, new alt, fan clutch, and brakes (aka, pads).
Had a few mods. I'm assuming the front bumper is not stock?? Maybe 4.6? Same with the running boards. Wheels are unfortunately aftermarket. Dealer didn't have any hub rings on it either. Which was a good bargaining chip. It vibrated bad.
Paints nice, has a few dings that I'll be having pulled.

Anyone have a good source for x parts? Interior, headlights? I'd like to do some swaps/retrofits. Specifically black int., nav., folding mirrors, and xenon headlights.

This is the rear hatch.



It's missing the door. And it's wired for a sub. Previous guy must have had a sub and amp back there. I think he cut up the mounting tabs for the nav brackets too. Any idea if the e53 is prewired for nav or do I need to buy a harness? I notice there are unused plugs everywhere. In the engine bay, wheel arches, rear hatch.
I already have Bluetooth retrofit parts in one of my e38's. I hope to swap them into the x soon.
I did a fresh oil change. Next up will be transfer case and diffs. Then brakes. Is there a factory caliper upgrade available? On the e38's, the 750 had dual piston calipers that are a direct swap into the 740's. If not I'm just going to find a used set of stockers to powder coat and rebuild.

Anyway, hope this one treats me as well as the last one. It's def. a lot more fun to drive. The v8 and air ride are a great combo compared to the last ones 3.0 and conventional shocks.

Oh, btw, it has an aftermarket Reece hitch. But I can't seem to find any wiring. And the oem retrofit kit seems to be indefinitely back ordered. Is there any good way to work out the wiring? My last one had it factory equipped.