Hi guys

I been having problem starting my car esp after not driving for a few days..(4days).. but if i drive it everyday, i still starts ok.. but have signs of difficulty to start.. as in the engine doesnt "roar" as loud when i switch it on.. it sort of coughs its way through..

RAC came once and told mi to jump start and try once more..if it flats out again.. change the battery..

so i wanna find out if its becoz of the wiring connecting the battery failed? or prob jus change the battery? how do i find out if wiring is not gd?

thanks