thanks a lot for your help.
I haven't had the alternator looked at but prior to getting audio gear installed the battery was very ordinary. It would go dead in a matter of minutes with the parkers on so i assume the battery is getting old.
The thing is i'm not looking to do any major work, i just want to swap the battery for a more reliable one. I do want to be able to sometimes sit in my car with the engine off and listen to my music and not worry about the battery dying. I don't mean cranking the volume and listening for hours though lol.
Would the red top suit me if i did go for Optima? If so, will it be possible for me to sit, if only for a half hour or so on say medium volume, in my car and listen to music without any worries. I don't want to go as far as installing a second battery for starting the car nor do i want to start running cables from the alternator, i'm looking for the easiest option really lol.
Thanks.