Fixed Asset extended to Capital Asset Management-Equipment Master

Hi

Is it possible to have one BU in the equipment master accounting tab and another BU in the fixed asset master responsible BU because when ever I change the BU in equipment master it is automatically changing in the fixed asset master responsible BU and when ever I change the responsible BU in fixed assets by changing the location it is automatically changing in the equipment master accounting tab BU.

How can I have two different BU's, one in fixed assets and other in equipment master.

Note:- Fixed asset master record has been extended to CAM through the extension application.