OK well the problem has been found, and i hope this is a help for others.
After a heavy rain my ute was flooded behind the passenger seat, and from this my dash and stereo and a/c became faulty.
After draining all the water out and lifting the carpet to get the damp out, i looked all over to see what could be the problem, after changing stereo to see if that was the problem and it was not i looked at all fuses again and now relays as well since water was quite high in back and had shorted out the battery ,needing a new one.
Started looking for the main connections to see if they could be the problem and yes, one of the first joint from the 2 fuses coming from the power side had burnt out and was melted away, after repairing that connection all was going but the stereo and a/c, so took advice from one of the reply's about removing a radio fuse and giving it a few hours and yes it fixed it all, so thank you guys for giving advice .
now just to put the ute back together
thanks for the advice guys it helped
smut