A brown spider with a yellow stripe on its head is a wolf spider. The wolf spider may sometimes have an orange stripe on their head also.
The small brown bird with a white stripe on its head is called a White-crowned Sparrow.
The distinguishing feature of a brown spider with a black head is the contrast between the brown body and the black head.
yellow eyed penguin
The Eurasian Blackbird is a black bird with a yellow beak.
The distinguishing feature of a spider with a black head and brown body is its unique coloration, which sets it apart from other spiders.
cedar waxwing
Hi! I found a spider similar to the one you're describing on a lavender plant in my Southern California garden. It appears to be a Western variation of the Peucetia Viridans or Green Lynx Spider, see here http://bugguide.net/node/view/30278.
The spider you are describing sounds like a common household spider known as the "brown widow." Brown widow spiders have a distinct color pattern with a brown abdomen, brown legs, and a black head. Their appearance can resemble a fly due to the coloration of their body segments.
www.installdr.com has information on radio harnesses (that is, the ones that come out of the back of the Head Unit) The colors are named on their sheets, and they should trace all the way back to the sides/rear speakers. Left Rear Spkr (+) Blue w/ Yellow Stripe Left Rear Spkr (-) Gray w/ White Stripe Right Rear Spkr (+) Red w/ Yellow Stripe Right Rear Spkr (-) Brown w/ White Stripe Left Front Spkr (+) Blue w/ Green Stripe Left Front Spkr (-) Gray w/ Black Stripe Right Front Spkr (+) Red w/ Green Stripe Right Front Spkr (-) Brown w/ Black Stripe Again, this is all according to InstallDr.
Stripe
Spiderman's Uncle
The adult brown pelican