Stability of a system of two second order, linear difference equations

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I have a system of two linear difference equations in the form:

$$ x_{1,t+2}=-Ax_{1t}-Bx_{1,t+1}-Cx_{2t}-Dx_{2,t+1}+Ex_{2,t+2}+F $$ $$ x_{2,t+2}=Gx_{2t}-Hx_{2,t+1}+Ix_{1t}+Jx_{1,t+1}-Kx_{1,t+2}+L $$

where A-L are some constants. What would be a way to solve the general solution & analyze the stability of the equilibrium state?

Thank you!

EDIT: Added specific functions.

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The problem can be rewritten as

$$X(t+1)=MX(t)+N$$

for some suitable vector $X(t)$ and matrices $M$ and $N$.

The fixed points $X^*$ can be found by solving $X^*=MX^*+N$.

The stability of the equilibrium points can be studied by looking at the eigenvalues of the matrix $M$ which must be in the unit disc. Some eigenvalues can be located on the unit circle under certain conditions.