I mentioned this in the other thread: I had the same problem with a Sony headunit, the solution is to connect the negatives of all the speaker outs to the headunits ground, works fine for me.
Its the charcoal canister, dont worry about it. The other noise that you might hear is bubbling water flowing back to the resevoir after a hard run, thats normal too.
Thanks for the replies dudes :group-cuddles: Yeah the SAFC2 lets you adjust the fuel-air ratio at whatever rpm you want... need to get it set up at an RR session though really (which I havn't done yet ). I'm waiting to get an A-pillar guage so I can mount the boost guage properly, it's been sitting there for months now and the bracket has scratched the dash so i need to repsray that aswell.
As Bibbs said best way to eliminate all the problems at once is to use a new loom straight from the battery. I had the same problem with the headunit turning off randomly until I found out I hadn't connected both power lines to the unit (red + yellow) so that whenever the stock ariel popped up it switched off. The buzzing is an earth problem that I had too, try connecting all the speaker -ve's from the ps2 to ground. That worked for my headunit!
Thanks for the comments guys, the thing mounted in the roof is a SAFC-2 and the dials are from http://speedhut.com. They're very popular among mr2 folk, you can get a set for about £70+ I think but make sure you get the right set of dials!
To be safe, I'd create a seperate fused power and ground lead for the TV unit if I were you. The speaker wires of course can be shared without any problems.
agreed, the NS-2's are quite good! They came with my alloys (245/215). In the dry they have excellent grip, though in the wet theyre not quite as good. Lasts forever too