Anyway I found an amp head in my shed. Its not guitar amp, but id sure as hell like to plug it in and see how it rolls. Its a Sansui "AU-55A". it has several inputs at the back, but i have no idea how to use them. Where do I plug the guitar in?

Phono 1 & 2, Aux, Tuner & Tape (switch). Aux can be used for CD, DVD, VCR, Headphone jack.
Pre-in Main-out RCA plugs on rear. This amp can be used as a pre-amp or power amplifier. The Pre-Amp, inputs and power supply are all shielded.

Where do I plug in the guitar, what adaptors will i need? I can figure out how to plug speakers in,

Jackson RR3 - BKP Painkiller/Warpig
Bugera 333XL 212
Pod Studio UX1
MXR Smart Gate
Hardwire CM-2
Quote by wretchedspawn
i think its a stereo amp.

I'm pretty sure he can still use it tho
Look Left>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>Left you idiot
That's only really worth even trying if it's some kind of tube stereo. You'll just get a nasty dry clean tone out of that.
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Would you do it?

If you could make everybody poor just so you could be rich,
Would you do it?

With all your power,
What would you do?
It's stereo amp, and I don't think it's tube. However, for a stereo amp, it is very good. Don't plug guitar into it; just use it as hi-fi if it works.