Car N most noticably the steering wheel starts 2 shake @ 30MPH increasing speed increases severity of the shake. Doesn't occur all the time happens randomly. Inquired with an online mechanic site described what was happening how often N @ what speed it starts 2 happen, first ? asked by the mechanic involved how my battery connections were b4 internet connection was lost. By chance the day prior 2 when the shake began my positive battery terminal wasn't connecting properly (installed audio system, power cable 4 amp) so I've tightened it but still isn't right. Sumtimes when I go 2 start my vehicle I'll turn the key N nothing, as if the battery is dead, but a wiggle or tighten later it'll start. Are these 2 situations actually related or am I going in the wrong direction 2 getting this problem fixed?
