Something is loose...tighten things up...learn to use the cluster test to keep an eye on things...but this sounds like a loose/corroded connection...and I hope you get lucky and that's all it is.
Start at battery...alt...+ terminal...grounds
In NJ--Tierney's in Montclair, Sept. 25, 7:30 p.m.
In NYC Sat, Sept. 30, 8 p.m. at Broadway Comedy Club! Sat, Oct. 8, 6 p.m. at Greenwich Village Comedy Club.
Comedy can be a great cheap date!
Mangofy your E46!