Help please!!

[SimonR.]

Second day of having the car and i now cant start it.

I took one of the bolts off the positive terminal to connect an amplifier lead but decided to let someone else do it cos it confused me.

Also cut the connecter off the passenger side speaker door to fit another speaker only to realise i need a solder gun.

Only the bolt left the battery and i fitted a sony head unit yesterday.

Now i try to turn the car on and it doesnt work. The red dot light is flashing in the middle of the dash and an orange faint steering wheel is coming up.

Whats wrong?

 

[SimonR.]

Update, all the normal lights are coming up now but i cant start the car, it just shows this steering wheel

Any ideas?

 

[SimonR.]

Not sure what happened but i tightened up the bolt i undid and its working now