Are the wires in pairs? Then they should still have some sort of marking.
As for 'what/where', the 'pop' test is quick 'n easy...but a cheap meter is still a good call....
I've had a cheap meter for decades, and it comes in handy when you're trying to ascertain 'is this plug Hot?'
"Is my battery toast?" Weak ones become obvious....*s*
Even some of the cheaper ones will indicate 'reverse polarity' with a negative sign before the reading....
Every audiophile ought to have one....by now....too handy to be ignored.
Wanna know resistance? Measure it.
As for 'what/where', the 'pop' test is quick 'n easy...but a cheap meter is still a good call....
I've had a cheap meter for decades, and it comes in handy when you're trying to ascertain 'is this plug Hot?'
"Is my battery toast?" Weak ones become obvious....*s*
Even some of the cheaper ones will indicate 'reverse polarity' with a negative sign before the reading....
Every audiophile ought to have one....by now....too handy to be ignored.
Wanna know resistance? Measure it.