[Stan Murray]

The biggest noise maker is the A arm that connects with the bolts running on the inner fender walls. It is very difficult to lube the area. The movement is up and down on the A arm but front to rear stress movement makes noise also. The rubber wedges into the box like opening and the bolt goes through the metal sleeved bushing. I have tried all kinds of lube sprays but finally had to take them apart and apply grease on the sleeve and bolt to get it to stop. Try some silicone spray or some white grease and see what happens. You might get luckier than me. If you drive through a little water
it will get worse when it drys out. I have a buddy with a GTV6 that squeeks sooo badly when he goes over the speed bumps slowly at the University where he PHDs (post hole digger) He finally talked me into changing out the A arms and it cured the problem, but his wife's spider does the same thing.
Silicone spray doesn't hurt rubber far as I know, and should help some.

 

[Stan Murray]

One is a Caster arm that supports the suspension front to rear as the car is moving. The other is a pivot up and down. As you say it goes to the inner body, but in actuality to the inner fender wall.. There is a big bolt and nut going through it. At that joint, I believe is where your squeek is.

Someone that knows how could post some pictures. Duh, I never have figured out how. Old computer.

good luck!
Stan