head unit wiring problem?????

[m8davem8]

i got a new headunit and i wunt turn on with out the ignition been on n wut save stations so like all the other threads i swapped the red n yellow wires which worked fine BUT ..... now the headunit doesnt come on when i turn the ignition on i have to turn the radio on manually??? same withturning it off any help???????????? thanks

[Claki]

maybe youve switched the wrong wires around?

[m8davem8]

and iv gon to the car now and the battery is flat wtf is the problem???????????

[9Freedman9]

When it wasn't saving stations, was it in demo mode or anything like that?

[Huxley]

short circuit mate!, refer to wiring diagrams on the instruction pack or maybe owners manual?